ASTROSAT CZTI

Data Quality Report

Orbit 16196

Creation date: 2024-06-27T17:19:12.837145
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T02_109T01_9000002386_16196cztM0_level2.evt modeM0/AS1T02_109T01_9000002386_16196cztM0_level2_quad_clean.evt
Size (bytes)482,215,68084,971,520
Size459.9 MB 81.0 MB
Events in quadrant A3,326,267549,134
Events in quadrant B3,470,038552,340
Events in quadrant C3,561,230525,599
Events in quadrant D3,826,389513,977

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134653
B0138432
C0142472
D0151452

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6196530.855391%
B6196891.436411%
C6196901.452550%
D61962183.518399%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7507 6199 0 0 0.00% 0.00%
B 7507 6199 7 7 0.09% 0.11%
C 7507 6199 0 0 0.00% 0.00%
D 7507 6199 155 155 2.06% 2.50%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 9 143 28154 161.26 852 838 169.4
A 8 247 11579 63.41 852 838 169.4
A 15 174 8951 47.9 852 838 169.4
B 5 65 59640 374.93 836 818 156.9
B 4 216 35951 223.94 836 818 156.9
B 0 229 30928 191.92 836 818 156.9
C 3 233 288121 1567.75 798 807 183.3
C 14 238 127797 692.93 798 807 183.3
C 7 247 32328 172.0 798 807 183.3
D 1 52 727322 3651.51 815 792 199.0
D 2 234 23251 112.88 815 792 199.0
D 14 226 7913 35.79 815 792 199.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter